Vambol, S., I. Bogdanov, V. Vambol, Y. Suchikova, H. Lopatina, and N. Tsybuliak. “Research into Effect of Electrochemical Etching Conditions on the Morphology of Porous Gallium Arsenide”. Eastern-European Journal of Enterprise Technologies, vol. 6, no. 5 (90), Dec. 2017, pp. 22-31, doi:10.15587/1729-4061.2017.118725.